C3825 External Head External Head Freeze Her to Death

Although I can't understand it, I can't learn it.

However, Gao Feifei still tried her best to memorize all the formulas until Saturday. Before the library opened, Gao Feifei waited at the entrance of the library. After the library opened, she went to the library from before. She sat in the seat where she had sat with Shen Xiangyang the last time and began to wait silently.

An hour passed